(19)
(11) EP 1 128 047 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.07.2003 Bulletin 2003/27

(43) Date of publication A2:
29.08.2001 Bulletin 2001/35

(21) Application number: 01104134.0

(22) Date of filing: 21.02.2001
(51) International Patent Classification (IPC)7: F02D 41/34
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 22.02.2000 JP 2000044554
22.02.2000 JP 2000044553

(71) Applicants:
  • UNISIA JECS CORPORATION
    Atsugi-shi, Kanagawa-ken (JP)
  • NISSAN MOTOR CO., LTD.
    Yokohama-shi Kanagawa-ken (JP)

(72) Inventors:
  • Shimizu, Hirokazu, c/o Unisia Jecs Corporation
    Atsughi-shi, Kanagawa-ken (JP)
  • Shimizu, Noriaki
    Fujisawa-shi, Kanagawa-ken (JP)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Maximilianstrasse 58
80538 München
80538 München (DE)

   


(54) Cylinder discrimination device and cylinder discrimination method of engine


(57) An internal combustion engine is equipped with a plurality of cam sensors that output cylinder discrimination signals during every uneven crank angle interval, and specific cylinders are discriminated based on said cylinder discrimination signals output from said plurality of cam sensors. Based on the discrimination result of said specific cylinder and said cylinder discrimination signals from cam sensors, the cylinders other than said specific cylinders are discriminated.






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